3 For the Month Ended January 31 Master Master Budget 4 Actual Budget Variance Sales volume (number of cases 5 sold) 6 Sales revenue 7 Less: Variable expenses 8 Contribution margin 56,500 53,000 $ 177,700 $ 153,700 68,300 58,300 $ 109,400 $ 95,400 9 Less: Fixed expenses 73,800 73,000 10 Operating income $ 35,600 $ 22,400